NEET
- Exam
- NEET
- Subject
- Chemistry
- Chapter
- Hydrogen
NEET · Chemistry · Hydrogen
What is the purpose of passing water successively through a cation...
What is the purpose of passing water successively through a cation exchange resin (in the H⁺ form) and an anion-exchange resin (in the OH– form)?
Options
- ATo increase water hardness
- BTo remove all dissolved ions from the water
- CTo make the water acidic
- DTo obtain pure de-mineralized water
Correct answer
D. To obtain pure de-mineralized water
Step-by-step solution
Passing water successively through a cation exchange resin (in the H⁺ form) and an anion-exchange resin (in the OH– form) is done to obtain pure de-mineralized water free from all soluble mineral salts.